Home / 1,576.94-2,175.59-913.55

Finding the Fourth Proportional to 1,576.94, 2,175.59 and 913.55

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Solution

The fourth proportional to 1,576.94, 2,175.59 and 913.55 is: 1,260.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,576.94 : 2,175.59 = 913.55 : x
  2. Step 2: Convert to fraction form
    1,576.94/2,175.59 = 913.55/x
  3. Step 3: Cross multiply
    1,576.94x = 2,175.59 × 913.55
  4. Step 4: Simplify right side
    1,576.94x = 1,987,501.65
  5. Step 5: Solve for x
    x = 1,987,501.65/1,576.94
  6. Step 6: Final answer
    x = 1,260.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.